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NTA Abhyas JEE Main2020PhysicsThermal Properties of MatterPractice

Consider two spheres A and B of the same size and made of the same material. The sphere A is hollow while the sphere B is solid. If both the spheres are heated to the same temperature, then

Options

  1. AA expands more than B
  2. BA expands less than B
  3. Cboth the spheres expand equally
  4. Ddata is insufficient.

Correct answer

C. both the spheres expand equally

Step-by-step solution

A cavity in a material expands in exactly the same way as if the cavity were filled with material. Thus, both spheres will expand by the same amount.

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